unity 截图/图片保存到手机相册

2024-03-09 03:45| 来源: 网络整理| 查看: 265

从unity保存图片到相册，游戏中需要一些保存图片到相册的操作。

===unity 这边的C# 代码====

#if UNITY_IPHONE //与调用ios 里面的保存相册接口 [DllImport("__Internal")] private static extern void SavePhotoAlubm(string path); #endif //传的参数是自己获取的图片 public IEnumerator getTexture2d(Texture2D t) { //截图操作 yield return new WaitForEndOfFrame(); //截图保存的图片 //Texture2D t = new Texture2D(Screen.width, Screen.height, TextureFormat.RGB24, false); //t.ReadPixels(new Rect(0, 0,Screen.width, Screen.height), 0, 0, true);//设置屏幕的大小 byte[] bytes = t.EncodeToPNG(); t.Compress(true); t.Apply(); //获取系统时间 System.DateTime now = new System.DateTime(); now = System.DateTime.Now; string filename = string.Format("image{0}{1}{2}{3}.png", now.Day, now.Hour, now.Minute, now.Second); //应用平台判断，路径选择 if (Application.platform == RuntimePlatform.Android) { string origin = Path_save; destination = "/mnt/sdcard/DCIM/Screenshots"; if (!Directory.Exists(destination)) { Directory.CreateDirectory(destination); } destination = destination + "/" + filename; Path_save = destination; //保存文件 Debug.Log("路径：" + Path_save); File.WriteAllBytes(Path_save, bytes); // 安卓在这里需要去调用原生的接口去刷新一下，不然相册显示不出来 using (AndroidJavaClass playerActivity = new AndroidJavaClass("com.unity3d.player.UnityPlayer")) { using (AndroidJavaObject jo = playerActivity.GetStatic("currentActivity")) { Debug.Log("scanFile:m_androidJavaObject " ); jo.Call("scanFile",Path_save); } } } else if (Application.platform == RuntimePlatform.IPhonePlayer) { string origin = Path_save; destination = Application.persistentDataPath; if (!Directory.Exists(destination)) { Directory.CreateDirectory(destination); } destination = destination + "/" + filename; Path_save = destination; //保存文件 ios需要在本地保存文件后，然后将保存的图片的路径传给ios Debug.Log("路径：" + Path_save); File.WriteAllBytes(Path_save, bytes); SavePhotoAlubm(Path_save); } }

==== 安卓 jar端 =====

//安卓端接受刷新相册的接口

public void scanFile(String filePath) { Log.i("Unity", "------------filePath"+filePath); Intent scanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); scanIntent.setData(Uri.fromFile(new File(filePath))); this.sendBroadcast(scanIntent); //我这边 this 是UnityPlayerActivity }

====ios端保存相册====

.h 文件如下

#import @interface IOSAlbumCameraManager :NSObject - ( void ) imageSaved: ( UIImage *) image didFinishSavingWithError:( NSError *)error contextInfo: ( void *) contextInfo; +(instancetype)sharedManager; -(void) savePhotoAlbum:(NSString*) readAddr; @end

.mm文件如下

#import "IOSAlbumCameraManager.h" @implementation IOSAlbumCameraManager +(instancetype)sharedManager { static dispatch_once_t onceToken; static IOSAlbumCameraManager *instance; dispatch_once(&onceToken, ^{ instance = [[IOSAlbumCameraManager alloc] init]; }); return instance; } - ( void ) imageSaved: ( UIImage *) image didFinishSavingWithError:( NSError *)error contextInfo: ( void *) contextInfo { if(error) { NSLog(@"图片保存到相册失败!"); } else { NSLog(@"图片保存到相册成功!"); } } -(void) savePhotoAlbum:(NSString*) readAddr { UIImage *img = [UIImage imageWithContentsOfFile:readAddr]; NSLog([NSString stringWithFormat:@"w:%f, h:%f", img.size.width, img.size.height]); //IOSAlbumCameraManager *instance = [IOSAlbumCameraManager alloc]; UIImageWriteToSavedPhotosAlbum(img, self, @selector(imageSaved:didFinishSavingWithError:contextInfo:), nil); }

如果有不懂的或者更好的方法欢迎在下方留言。

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